550361889 has 24 divisors (see below), whose sum is σ = 991129152. Its totient is φ = 285901920.

The previous prime is 550361863. The next prime is 550361897. The reversal of 550361889 is 988163055.

550361889 is a `hidden beast` number, since 5 + 503 + 61 + 8 + 89 = 666.

It is not a de Polignac number, because 550361889 - 2⁷ = 550361761 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550361389) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 396394 + ... + 397779.

It is an arithmetic number, because the mean of its divisors is an integer number (41297048).

Almost surely, 2^550361889 is an apocalyptic number.

It is an amenable number.

550361889 is a deficient number, since it is larger than the sum of its proper divisors (440767263).

550361889 is a wasteful number, since it uses less digits than its factorization.

550361889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794197 (or 794194 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 550361889 is about 23459.7930297776. The cubic root of 550361889 is about 819.5009302055.

The spelling of 550361889 in words is "five hundred fifty million, three hundred sixty-one thousand, eight hundred eighty-nine".